Glow plug light is fluttering?
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New User
Joined: Sep 2006
Posts: 11
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From: Grants Pass, OR
Glow plug light is fluttering?
My indicator light started fluttering at 65 mph this morning. Only for a second or 2 and then off, then fluttered again a few minutes later. The engine was at operating temperature. Is this a sign of a real problem or normal on these old 6.9 diesels? Mine is a 1986 (6.9L).
How long does it take before glow plugs can fry? My "water in fuel" light has never come on.
I did have the entire glow plug system upgraded to the 7.3L style this Spring.
Am I in trouble again? Thanks for any advice.
How long does it take before glow plugs can fry? My "water in fuel" light has never come on.
I did have the entire glow plug system upgraded to the 7.3L style this Spring.
Am I in trouble again? Thanks for any advice.
Last edited by Dave Sponaugle; Sep 6, 2006 at 08:44 PM.
Logistics Pro
Joined: Apr 2004
Posts: 4,292
Likes: 5
From: NJ where fun comes to die
The time for glow plugs to fry depends on the make. For most of them it is not long at all. What kind do you have? The newer style system is better than the old, but I guess not flawless. How long does the light stay on when you first try to start the truck when it is cold? Although I have the newer style in my 90, I decided to put in a push button. My gps have been for about 2 years now with no trouble.
Post Fiend
Joined: Nov 2003
Posts: 21,285
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From: Nutter Fort, WV
Amason,
Welcome to FTE and the IDI diesel forum.
Not normal at operating temperature.
If you have Motorcraft/Beru glow plugs it will take about 30 seconds before they are in trouble.
I am thinking you may have a loose connection that is causing the light to flicker.
How long do they stay on when the engine is cold on the first start of the day?
PS your HTML code was visible so I edited it out to make the post easier to read.
Welcome to FTE and the IDI diesel forum.
Not normal at operating temperature.
If you have Motorcraft/Beru glow plugs it will take about 30 seconds before they are in trouble.
I am thinking you may have a loose connection that is causing the light to flicker.
How long do they stay on when the engine is cold on the first start of the day?
PS your HTML code was visible so I edited it out to make the post easier to read.
Last edited by Dave Sponaugle; Sep 6, 2006 at 08:52 PM.
